Brown spotting after a fall

I am between 6-7 weeks pregnant after we unfortunately lost our daughter between 16-17 weeks in February. We are trying to remain positive throughout- I have been continuing to workout because it helps mentally and physically but last night I took a small spill. Today I am having brownish discharge and spotting- I have read it can be normal but my mind can’t help but race because of the timing.

Have an ultrasound scheduled on Thursday and just have to play the waiting game until then...😞